1) Magnoliid dicot family 2) Subfamily cabombaceae 3) Water-shield family 
Cabomba †Pluricarpellatia |}} Cabombaceae is a family of aquatic, herbaceous flowering plants. The family is recognised as distinct in the Angiosperm Phylogeny Group III system (2009). The family consists of two genera of aquatic plants, Brasenia and Cabomba, totalling half-a-dozen species. The APG system of 1998 included this family in the wate...
[n] - in some classifications considered an independent family of water lilies
subfamily Cabombaceae noun in some classifications considered an independent family of water lilies; comprises the genera Cabomba and Brasenia